<template>
  <div>
    <div v-show="!bCropper" class="demo-upload-list" v-for="item in uploadList">
      <template v-if="item.status === 'finished'">
        <img :src="item.url">
        <div class="demo-upload-list-cover">
          <Icon type="ios-refresh-empty" @click.native="handleRemove(item.url)"></Icon>
          <!--<Icon type="ios-trash-outline" @click.native="handleRemove(item)"></Icon>-->
          <Icon type="ios-crop-strong" @click.native="openCropper(item)"></Icon>
        </div>
      </template>
      <template v-else>
        <Progress v-if="item.showProgress" :percent="item.percentage" hide-info></Progress>
      </template>
    </div>
    <Upload
      v-show="uploadList.length == 0 && !bCropper"
      ref="upload"
      :show-upload-list="false"
      :default-file-list="defaultList"
      :on-success="handleSuccess"
      :format="['jpg','jpeg','png','ico']"
      :max-size="1024 * 5"
      :on-format-error="handleFormatError"
      :on-exceeded-size="handleMaxSize"
      :before-upload="handleBeforeUpload"
      multiple
      type="drag"
      :action="uploadUrl"
      style="display: inline-block;">
      <Button type="ghost" icon="ios-cloud-upload-outline">选择图片</Button>
      <!--<div style="width: 58px;height:58px;line-height: 58px;">-->
        <!--<Icon type="camera" size="20"></Icon>-->
      <!--</div>-->
    </Upload>
    <Modal title="图片预览" v-model="visible" :loading="true">
      <img :src="imgName" v-if="visible" style="width: 100%">
      <div slot="footer"></div>
    </Modal>
    <img-cropper id="newsCover"
                 v-if="bCropper && cropperUrl"
                 :imgUrl="cropperUrl"
                 :aspectRatio = "aspectRatio"
                 :previewRatio = "previewRatio"
                 v-on:copperData="getCopperData"
                 v-on:cancelCrop="getCancelStatus">
    </img-cropper>
  </div>
</template>

<script type="text/ecmascript-6">
  import Vue from 'vue'
  import {SERVICE_URLS} from "../../libs/service.url";
  import ImgCropper from "./img-crop";

  export default {
    props: ['imageUrl','previewRatio','aspectRatio'],
    components: {
      ImgCropper
    },
    data() {
      return {
        imgName : '',
        visible : false,
        uploadUrl : SERVICE_URLS.common.fileUpload.path,
        uploadList : [],
        defaultList : [],
        bCropper : false,
        cropperUrl : ''
      }
    },
    created () {

    },
    updated () {
      this.uploadList = this.$refs.upload.fileList;
    },
    mounted () {
      if (this.imageUrl) {
        this.defaultList.push({
          'name' : this.imageUrl,
          'url' : this.imageUrl
        });
      }
      this.cropperUrl = this.imageUrl;
      this.uploadList = this.$refs.upload.fileList;
    },
    methods: {
      handleBeforeUpload () {
        const check = this.uploadList.length < 5;
        if (!check) {
          this.$Notice.warning({
            title: 'Up to five pictures can be uploaded.'
          });
        }
        return check;
      },
      handleMaxSize (file) {
        this.$Notice.warning({
          title: 'Exceeding file size limit',
          desc: 'File  ' + file.name + ' is too large, no more than 2M.'
        });
      },
      handleFormatError (file) {
        this.$Notice.warning({
          title: 'The file format is incorrect',
          desc: 'File format of ' + file.name + ' is incorrect, please select jpg or png.'
        });
      },
      handleSuccess (res, file) {
        file.url = SERVICE_URLS.common.prefixUrl.path + res.result.fileUrl;
        this.cropperUrl = file.url;
        this.$emit('successHandle',file.url)
      },
      handleView (name) {
        this.imgName = name;
        this.visible = true;
      },
      handleRemove (file) {
        const fileList = this.$refs.upload.fileList;
        this.$refs.upload.fileList.splice(fileList.indexOf(file), 1);
        this.$emit('successHandle','');
      },
      openCropper () {
        this.bCropper = true;
      },
      getCancelStatus () {
        this.bCropper = false;
      },
      getCopperData (e) {
        console.log(e)
        this.$emit('successHandle',this.cropperUrl + '?imageMogr2/crop/!' + e.width + 'x' +e.height +'a'+ e.x + 'a' +e.y)

      }
    }
  }
</script>

<style scoped lang="scss">
  .demo-upload-list{
    display: inline-block;
    width: 60px;
    height: 60px;
    text-align: center;
    line-height: 60px;
    border: 1px solid transparent;
    border-radius: 4px;
    overflow: hidden;
    background: #fff;
    position: relative;
    box-shadow: 0 1px 1px rgba(0,0,0,.2);
    margin-right: 4px;
  }
  .demo-upload-list img{
    width: 100%;
    height: 100%;
  }
  .demo-upload-list-cover{
    display: none;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0,0,0,.6);
  }
  .demo-upload-list:hover .demo-upload-list-cover{
    display: block;
  }
  .demo-upload-list-cover i{
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    margin: 0 2px;
  }
</style>
